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NOTA: In computer networking, jumbo frames are Ethernet frames with more than 1500 bytes of payload (but
in some cases, jumbo frames can carry up to 9000 bytes of payload). Many Gigabit Ethernet switches and
Gigabit Ethernet network interface cards support jumbo frames. Some Fast Ethernet switches and Fast
Ethernet network interface cards also support jumbo frames.
Some computer manufacturers use 9000 bytes as the conventional limit for jumbo frame sizes. To support jumbo
frames used in an Internet Protocol subnetwork, both the host DR Series system (initiator or source) and the target
DR Series system have to be configured for 9000 MTU.
Consequently, interfaces using a standard frame size and those using the jumbo frame size should not be in the
same subnet. To reduce the chance of interoperability issues, network interface cards capable of supporting jumbo
frames require specific configurations to use jumbo frames.
To verify that the destination system can support a specific frame size, use the DR Series system CLI command
network --ping --destination <IP address> --size <number of bytes>.
For more information, contact Dell Support for assistance (for details, see
NOTA: Make sure that if you are using any Dell network switches that you take full advantage of the latest
switch firmware upgrades and application notes. The application notes provide procedures that assist you in
performing switch firmware upgrades and saving configuration files (for complete details, see
support.dell.com/ and navigate to Drivers and Downloads for your system type).
NOTA: When setting or changing the MTU value, make sure that you verify that the Ethernet network switch is
capable of supporting an MTU size that is equal to or larger than the value you are setting. Any mismatch in
MTU values between the clients, Ethernet network switch, and the DR Series system appliance will make it
inoperable.
Dell suggests that you observe standard best practices when deploying jumbo frames in networks, and
recommends using jumbo frames with the DR Series system because this frame size typically provides the best
performance. However, for networks that do not support jumbo frames, the DR Series system also supports using
the standard frame size.
8.
Under Bonding, from the Bonding configuration list, select the appropriate bonding configuration.
NOTA: You may lose the connection to the system if you change the bonding configuration. Change the
bonding configuration only if the system accepts the new bonding type.
–
TLB — configures transmit load balancing.
–
ALB—configures adaptive load balancing (ALB), which is the default setting.
NOTA: ALB load balancing does not balance the load properly when your backup servers are on a
remote subnet. This is because ALB uses the address resolution protocol (ARP) and ARP updates are
subnet-specific. Because this is the case, ARP broadcasts and updates are not sent across the
router. Instead, all traffic is sent to the first interface in the bond. To resolve this ARP-specific issue,
make sure that your data source systems reside on the same subnet as the DR Series system.
–
802.3ad—configures dynamic link aggregation using the IEEE 802.ad standard.
PRECAUCIÓN: If you change the existing bonding setting, the connection to the DR Series system may
be lost unless you are sure that the system can accept this bonding type.
9.
Click Submit to have the DR Series system accept the new values (or click Cancel to display the Networking page).
The Updated IP Address dialog is displayed when the selection is successful (if you change the static IP address
manually, you need to use this IP address in the browser when you log back into the DR Series system).
10. To configure DNS settings for your system, select the DNS tab and click Edit DNS on the options bar.
The Edit DNS dialog is displayed.
11. In Domain Suffix, type a domain suffix to use.
For example, acme.local. This is a required field.
Contacting
Dell).
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